Sencore CR7000 CRT Tester Details
Sencore CR7000 CRT Tester
This product is discontinued. CR7000 Condensed Specifications
CRT TEST FUNCTIONS
Shorts Tests
G1 Shorts: 20 megohm center scale H-K Shorts: 2 megohm center scale.
G2 Voltage Range: 10-400 VDC Video 1, Proj, and Scope CRT types;
15-600 VDC Video 2 CRT type.
Bias Voltage Range: Video & Projection: 20, 36, 52, 68, 84, 100, 116, 132,
148, 164, 184 VDC; Scope: all bias voltages divided by 10.
Cutoff & Low Tracking Test Tests ratio of G2 voltages needed to produce cutoff current in all
3 guns of a color CRT. Cutoff current measured between K and G1.
"Good" indication if the G2 voltages are within 1.25:1.
Emission Test Measures true beam current reaching G2.
Life Test Provides approximate indication of cathode reserve current by
lowering filament voltage by 25%.
Hi Tracking Test Automatically compares emission current between highest and lowest
guns in "Simultaneous" gun test and indicates Good/Bad result with LED.
Filament Voltage Range: 0-4; 4-8; 8-16 VDC.
RESTORE FUNCTIONS
Reactive Restore Filament voltage; 50% boost Current limit: 1 mA max.
Reactive Restore Filament voltage; normal Current limit: 40 mA max.
Normal Restore Filament voltage; normal Current limit: 80 mA max. with 2 automatic cycles.
High Restore Filament voltage; 50% boost Current limit: 100 mA max.
with 3 automatic cycles.
Extended Restore Filament voltage; 50% boost Current limit: 100 mA max.
Remove G1 Shorts Capacitive discharge between G1 and K/G2 after 20 second delay
for filaments to cool.
Rejuv Capacitive discharge between G1 and K (400V).
GENERAL Size: 7 3/4" x 12 1/2" x 8 3/4" HWD
Weight: 13 lbs
Power: 105-125 VAC 50/60 Hz (210-230 VAC available) |
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